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Role of schools in prevention of obesity and eating disorders
S10 on screen time or physical activity. There are also different responses according to socio-demographic groups. A 30 min reduction in television has approximately equal effects on boys and girls, while a reduction of 30 min in videogame playing is almost twice as beneficial for boys. A comprehensive ‘‘behaviourometric’’ model requires quantification of compliance and attrition, estimates of energy intake compensation for changed energy expenditure, multi-dimensional constructs of the quality of time use, nonlinear modeling of behavioural cross-elasticities, and dose—response relationships between behaviour and health outcomes. doi:10.1016/j.orcp.2011.08.071 Successful weight loss for adolescents: What can diet offer? Helen Truby 1,∗ , K. Baxter 2 , R. Ware 3 , J. Batch 4 1 Dept
of Nutrition and Dietetics, Monash University, Melbourne, Australia 2 Children’s Nutrition Research Centre, University of Queensland, Brisbane, Australia 3 University of Queensland, Brisbane, Australia 4 Dept of Endocrinology & Diabetes, Royal Children’s Hospital Brisbane, Australia The Cochrane review (2009) identified only 6 dietary intervention studies in total providing data from only 350 individuals, thus the evidence base is relatively small. The ‘Eat Smart’ studies have been designed to test a treatment pathway for treatment seeking adolescents and to examine whether a structured eating plan with a reduction in carbohydrate could be an alternative eating pattern to the standard low fat advice. To date, 125 young people (69% female), mean BMI Z score of 2.23, mean age of 13.2 years have undertaken a largely dietary intervention, with 67% presenting with a history of bullying/teasing at school which prompted seeking weight loss advice, ‘Eat Smart’ is preceded by a preparatory psychological program designed to increase coping skills. After 12 weeks, a mean reduction of 6.3% BMI Z score was achieved but a wide response was noted, with change in BMI Z score ranging from −0.45 to +0.01. Multivariate logistic regression explored change in BMI Z score. Those with the greatest benefit had lower baseline BMI, lower fasting insulin, higher social advantage and were referred from a specialist. Dietary macronutrient composition was not a predictor of weight loss neither was physical activity. These results suggest that reduction in dietary carbohydrate can provide an alternative dietary pattern but
Invited Speakers Abstracts there is need to understand further who is likely to be successful and offer a range of treatment options that are more tailored to an individual’s profile so expectations of the likely response to change in dietary energy intake can be managed. Funding source: National Heart Foundation, ANZ Trustees. doi:10.1016/j.orcp.2011.08.072 Role of schools in prevention of obesity and eating disorders Simon Wilksch School of Psychology, Flinders University, Adelaide, Australia To date the fields of eating disorder prevention and obesity prevention have remained largely separate from each other, with some concern that obesity prevention programs might inadvertently increase eating disorder risk and vice versa. However, a growing awareness of shared risk factors for both problems is leading some researchers and clinicians to develop programs aimed at simultaneously reducing the risk of both eating disorders and obesity. This presentation will review these shared risk factors; discuss the evidence for effective program development and delivery in school settings; and, provide a brief overview of three programs currently being evaluated in a RCT with Grades 7 and 8 girls and boys in Victoria, South Australia and Western Australia. It will be argued that schools represent a valuable opportunity to lower risk factors for future eating pathology. doi:10.1016/j.orcp.2011.08.073 The role of economics in advancing the obesity policy agenda Marj Moodie 1,∗ , R. Carter 1 , B. Swinburn 2 1 Deakin Health Economics, Deakin University, Melbourne, Australia 2 WHO Collaborating Centre for Obesity Prevention, Deakin University, Melbourne, Australia
This presentation draws on a range of studies to explore the contribution which health economics currently makes and could potentially make to the field of obesity prevention. Most health economic studies to date have adopted a ‘problem-focused’ approach — they have described and predicted the magnitude of the obesity problem and its associated economic impacts. These studies have a valuable advocacy role in placing obesity on the policy agenda. A related and newly emerg-
of Nutrition and Dietetics, Monash University, Melbourne, Australia 2 Children’s Nutrition Research Centre, University of Queensland, Brisbane, Australia 3 University of Queensland, Brisbane, Australia 4 Dept of Endocrinology & Diabetes, Royal Children’s Hospital Brisbane, Australia The Cochrane review (2009) identified only 6 dietary intervention studies in total providing data from only 350 individuals, thus the evidence base is relatively small. The ‘Eat Smart’ studies have been designed to test a treatment pathway for treatment seeking adolescents and to examine whether a structured eating plan with a reduction in carbohydrate could be an alternative eating pattern to the standard low fat advice. To date, 125 young people (69% female), mean BMI Z score of 2.23, mean age of 13.2 years have undertaken a largely dietary intervention, with 67% presenting with a history of bullying/teasing at school which prompted seeking weight loss advice, ‘Eat Smart’ is preceded by a preparatory psychological program designed to increase coping skills. After 12 weeks, a mean reduction of 6.3% BMI Z score was achieved but a wide response was noted, with change in BMI Z score ranging from −0.45 to +0.01. Multivariate logistic regression explored change in BMI Z score. Those with the greatest benefit had lower baseline BMI, lower fasting insulin, higher social advantage and were referred from a specialist. Dietary macronutrient composition was not a predictor of weight loss neither was physical activity. These results suggest that reduction in dietary carbohydrate can provide an alternative dietary pattern but
Invited Speakers Abstracts there is need to understand further who is likely to be successful and offer a range of treatment options that are more tailored to an individual’s profile so expectations of the likely response to change in dietary energy intake can be managed. Funding source: National Heart Foundation, ANZ Trustees. doi:10.1016/j.orcp.2011.08.072 Role of schools in prevention of obesity and eating disorders Simon Wilksch School of Psychology, Flinders University, Adelaide, Australia To date the fields of eating disorder prevention and obesity prevention have remained largely separate from each other, with some concern that obesity prevention programs might inadvertently increase eating disorder risk and vice versa. However, a growing awareness of shared risk factors for both problems is leading some researchers and clinicians to develop programs aimed at simultaneously reducing the risk of both eating disorders and obesity. This presentation will review these shared risk factors; discuss the evidence for effective program development and delivery in school settings; and, provide a brief overview of three programs currently being evaluated in a RCT with Grades 7 and 8 girls and boys in Victoria, South Australia and Western Australia. It will be argued that schools represent a valuable opportunity to lower risk factors for future eating pathology. doi:10.1016/j.orcp.2011.08.073 The role of economics in advancing the obesity policy agenda Marj Moodie 1,∗ , R. Carter 1 , B. Swinburn 2 1 Deakin Health Economics, Deakin University, Melbourne, Australia 2 WHO Collaborating Centre for Obesity Prevention, Deakin University, Melbourne, Australia
This presentation draws on a range of studies to explore the contribution which health economics currently makes and could potentially make to the field of obesity prevention. Most health economic studies to date have adopted a ‘problem-focused’ approach — they have described and predicted the magnitude of the obesity problem and its associated economic impacts. These studies have a valuable advocacy role in placing obesity on the policy agenda. A related and newly emerg-